Block and the like for road paving and other purposes



Maich 23,1926.

J. 5. {:QWPER BLOCK AND THE LJIKE FOR ROAD l AVING AND OTHER PURPOSES Fig.3. (1 e 31 Fig. 2.

Patented Mar. 23, 1926.

UITE STATES PATENT OFFICE.

To all whom it may concern:

Be it known that I, JACK SHERIDAN Cow PER, a subject of the King of Great Britain and Ireland, and residing at 24 Queensbury JACK snnnrnan oowrnn, or SOUTH Knusmeron,

Application filed December 29, 1922. Serial N 0. 609,703.

nonnoiv, ENGLAND. Brook AND THE LIKEYFOR ROAD PAVING AND OTHER, runrosns.

face by the traffic. The panels or the like constitute a reinforclng means to the surrounding rubber surfaces and prevent undue displacement of the latter, while permitting Place, South Kensington, London, S. W. 7, a quick and full return of the rubber por- 55 .ungland, have invented certain new and usetions to their normal positions as soon as the ful Improved Blocks and the like for Road stressed condition of the rubber surfaces,

Paving and Other Purposes, of which the caused by the traffic has been removed.

following is a specification.

The blocks may be provided. with in- 'This invention relates to blocks setts or creased rubber corners at the abuttin sides the like for use principally in paving roads, by forming the ends of the panels with diand for other purposes.

The object of the invention is to provide agonally shaped corners.

At intermediate positions on the abutting improved means for forming a road surface surfaces niches or other devlces are formed capable of withstanding continuous traffic. to allow for expansion and contraction,

in which rubber or any substance of pliable and interlocking holes and projections may nature shall predominate, thereby pracbe employed 011 the abutting surfaces for tically eliminating noise, and rendering the traffic surface more durable than wood paving as it offers a greater resistance to wear and tear than the systems nowin use.

It is well known that in ordinary wood or sett paving the lower surface of the sett bearing on the concrete base receives more posite character.

or less a continuous vibratory movement and depressing action, which is transmitted from embodiments in block or the upper or tr aliic surface of the road by ing to my invention.

the vibration or movement set up by the the effectof which is to form depressions or pot-holes and render the traffic brick having central cavity ends to receive a reinforcement Figure 2 is a transverse section through traffic,

surface of the road uneven.

This is obviated by my invention accord- In the drawings,

Figure 1 ing to which pure or waste rubber or a comthe centre of Figure 1.

posite substance thereof or any substance of pliable nature is utilized preferably in block rality of blocks or bricks having a central form to constitute for paving roads, a sett, web and combined with interlocking reinbrick or block of rectangular or other suitforcement.

able shape or solid block having recessed, sunk or dished-out side surfaces in which are located panels, insets,cores or the like of wood, cement, concrete, or other suit-able block or brick have open ends with dependmaterial or substance, which form abutting 1 ing portions forming increased abutting sursurfaces when the blocks are placed in pofaces at the ends, and having interlocking sition in paving, theupper and lower surcavities and projections at the base to join faces being of rubber or pliant substance, the blocks together longitudinally, the thus forming a slightly yielding and noisepanels or insets having transverse holes in which a tie bolt of rubber, or a metal bolt lower surface bearing on the concrete or surrounded by a rubber tube or washer may cement base, setting up a reaction to the movement transmitted from the upper surdeadening surface for the traffic, and the be used.

s a side eleva Figure 4 is a side elevation of a plur of blocks or bricks in which a central 1s transversely placed and the ends of holding the blocks in' position.

The proportions or sizes of the relative parts may be of any convenient kind for the purpose in view, and the invention provides a means of utilizing waste rubber, or rubber generally, whether pure or of a com- The accompanying drawings illustrate brick form, accordtion of block or with tapered Figure 8 is a transverse section of a plu- Figure 5 is a plan in which the blocks or ality web the bricks are arranged with their length in line with that of the gutter and kerb.

Figure 6 is a side elevation of brick or block having interlocking upper and lower ends and corners and projecting rib or member to fit into an indent of the base road surface.

Figure 7 is perspective view of cavity and projecting lip block.

In carrying the invention into effect a is a block or brick of suitable rubber having a non-slipping hard wearing surface for the traffic obtained by vulcanizing or other suitable means. The block or brick a is formed in moulding with a cavity I), having taper, rounded or, other appropriate ends 0 to provide additional rubber substance 0 at the ends and give greater resistance to deflection by the traffic. Within the said cavities are formed, inserted, moulded or placed insets or panels, cores or the like (Z made of cement, concrete, wood, asphalt or other suitable substance to form a reinforcement for the rubber' surrounds to. maintain a substantially rigid or slightly yielding action to the pressure taking up parts during traffic moving thereon. The members (Z may be interlocked with the members a as shown at e,-in Figure 3.

The upper sides of the members a may be extended as at. 9, Figure 4 to form a dovetail joint with a corresponding member (Z and so obtain increased resistance or strength where it is mostly required.

An interlock h for the members a may consist of a cavity at one end and a projection at. the other end, so as to connect with each other or one kind of block orbrick may have cavities and another projections at both ends.

The kind of rubber employed for the wearing surface is that capable of offering a maximum resistance towear and tear, and to the formation of a slippery surface, and may be of the rough vulcanized rubber type.

j is the transverse hole and j the rubber tube or washer upon a tie rod or bolt of rubberto interlock the members a.

(Z is the central web. arranged transversely to the member a. m indicates glittering and n kerbing composed likewise of rubber blocks or bricks.

The blocks or bricks designed to meet the sides of the guttering or kcrbing are provided with a prepared surface or layer of pliable or plastic material formed integrally with the block or brick when moulding, or separately formed orv applied.

The rubber most suitable is that capable of resisting hard compression and quickly restoring itself when the pressure is removed.

To further increase the paving efficiency, slabs or layers of rubber in sheet form may be laid upon the concrete or other base and the improved blocks laid upon them, either with or without the lower layer of rubber forming the base of the block or brick.

The blocks or bricks may have projecting end pieces adapted to engage in recessed portions upon the next abutting block or brick, and these may be cemented or otherwise secured in position, the object being to avoid clearance between abutting members. To meet conditions where the traffic is not heavy and it is otherwise desirable to have a reduced usage of rubber, the top, base and ends of the block or brick may be less substantial with an increased area or mass of panel, inset core or the like.

A series block or brick in accordance with this invention comprises the characteristic of a number of blocks or bricks embodied as one, the overall dimension of which will be equal to the length of a single block or brick multiplied by the number of single blocks or bricks to. which it is desired to make the series block or brick equal, and these series blocks or bricks will have a curvature or deviation adapted to meet the slope at each side and the crown of the road.

29 is the projecting rib or member in Figure 6 and r the cavity and h the projecting lip in Figure 7.

By the term rubber is meant, rubber, whether pure, reclaimed, composite, or any other substance of pliable nature which is suitable for the purpose.

Having now I described my invention, what I claim as new and desire to secure by Letters Patent is 1. A block comprising a moulded shell of rubber material formed of upper, lower and end portions arranged integrally as one, a cavity in the shell between the said portions, 21-. core member of relatively harder material than rubber adapted to fill in the cavity, and thickened inner corners upon the shell shaped to give increased resistance to the disruptive effect, between the shell and core produced by the traific when the block is under traffic pressure.

2. A paving block comprising a moulded shell of rubber material, having upper, lower and end surfaces formed integrally as one, a cavity in the shell formed between the said surfaces at the formation of, the shell, and a filling of harder material to constitute a core member to fit the cavity which has thickened inner corners and to the shape of which the ends of the core members are adapted to conform.

3. A block consisting of a moulded frame of rubber comprising upper and lower pliable surfaces, a cavity formed therebetweenv and divided by a central web and an inner block of material adapted to fill each side of" said cavity and form a reinforcement to prevent collapse of the said frame.

l. A moulded block comprising elastic upper and lower layers, a plurality of cavities, a plurality of Webs separating the cavities, and a plurality of reinforcements closing the cavities.

5. A moulded block comprising elastic upper and loWer' layers, projecting flanges and ledges thereon, a cavity between the said layers, a relatively hard block closing the said cavity and a rib upon the lower layer to take into an indent on the road.

In testimony whereof I have signed my name to this specification.

JACK SHERIDAN COVVPER- 

